Abstract: Aqueous ammonium phosphate solutions can be produced using an apparatus comprising: a fluid reactor having a plurality of inlets at one end thereof suitable for the admission of phosphoric acid, ammonia and water, the inlets being so positioned as to provide for rapid ammoniation of the phosphoric acid with the evolution of heat, to produce a reaction product mixture containing a liquid portion and steam, the fluid reactor having an exit for the expulsion of the reaction products mixture at the other end thereof, by steam generated by the heat liberated in the ammoniation process; a columnar vessel having an outlet at one end and, at the other end, enclosing the exit of the fluid reactor, a plurality of barriers obturating the columnar vessel in a spaced-apart relationship, and having a plurality of apertures therein for the passage of reaction products mixture therethrough; an inlet quench device connected to the columnar vessel for introduction therein of a liquid aqueous quenching fluid; and, a device in c

Abstract: Phosphoric acid and ammonia are reacted together with additions of water when necessary in a reaction vessel to form a molten entrained stream reaction mixture to which a water quench is added to produce an ammonium polyphosphate liquid fertilizer.

Abstract: An apparatus for reacting phosphoric acid and ammonia to form a molten reaction mixture, to which water can be added to produce an ammonium polyphosphate product, comprises:(A) fluid reactor means having a plurality of inlet means suitable for administration of reactants and positioned to provide for rapid ammoniation of the phosphoric acid with evolution of heat and aperatures to the other end providing exit means for the reaction mixture, said reactor means being adapted to the expulsion of the reaction mixture by steam generated in situ;(B) means for separating the steam from the liquid product solution and removal of said steam from the apparatus; and(C) columnar vessel means having outlet means at one end and enclosing at the other end the exit means of said fluid reactor means and a plurality of barrier means partially blocking said columnar vessel means in spaced-apart relationship and having aperatures therein for passage of reaction product therethrough and inlet means suitable for introduction of a